{"id":846,"date":"2013-08-28T21:34:35","date_gmt":"2013-08-28T21:34:35","guid":{"rendered":"http:\/\/blog.mathsmadeelementary.co.uk\/?p=846"},"modified":"2013-10-07T13:32:05","modified_gmt":"2013-10-07T13:32:05","slug":"puzzles-10","status":"publish","type":"post","link":"https:\/\/blog.mathsmadeelementary.co.uk\/?p=846","title":{"rendered":"Puzzles 10"},"content":{"rendered":"

\"Questions\"<\/a>1. Which month has twenty-nine days in a leap year?<\/p>\n

2. In five years\u2019 time, I will be three times as old as I was three years ago. How old am I now?<\/p>\n

3. The mother, father, son, daughter, uncle, aunt, brother, sister, cousin, nephew and niece of a family are all present at a family gathering. A photo is taken of them all. What is the least number of people in the photo?<\/p>\n

4. A building that was constructed in the year 50BC was destroyed by fire three-quarters of a century later. In which year was it destroyed?<\/p>\n

5. If a man\u2019s mother-in-law can marry his son, and a woman\u2019s father can marry her sister-in-law, can a man marry his widow\u2019s sister?<\/p>\n

\"Answers\"<\/a>
\nAnswers:<\/span><\/strong><\/p>\n

1. Every month.<\/p>\n

2. Seven. Hint: Use algebra. Let x = my age now. Then solve the equation x + 5 = 3(x \u2013 3)<\/p>\n

3. Four. A brother and sister, the brother\u2019s son and the sister\u2019s daughter.<\/p>\n

4. AD26 since the dates go from 1BC to AD1 meaning one of the intervening seventy-five years would have counted as two.<\/p>\n

5. No. Because he would have to be dead in order to have a widow.<\/p>\n","protected":false},"excerpt":{"rendered":"

1. Which month has twenty-nine days in a leap year? 2. In five years\u2019 time, I will be three times as old as I was three years ago. How old am I now? 3. The mother, father, son, daughter, uncle, … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[8],"class_list":["post-846","post","type-post","status-publish","format-standard","hentry","category-puzzles","tag-puzzles-2"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t